PROCESS TO PREPARE MIDDLE DISTILLATES AND BASE OILS
    1.
    发明申请
    PROCESS TO PREPARE MIDDLE DISTILLATES AND BASE OILS 审中-公开
    制备中间馏分和基础油的方法

    公开(公告)号:US20150184089A1

    公开(公告)日:2015-07-02

    申请号:US14408607

    申请日:2013-06-28

    Abstract: A process to prepare a first middle distillates fraction, a second middle distillates fraction, a distillate base oil and a residual base oil by providing a Fischer-Tropsch product stream; separating the Fischer-Tropsch product stream to obtain at least a low boiling fraction, boiling below a temperature ranging from 300 to 450° C., and a high boiling fraction, boiling above a temperature ranging from 300 to 450° C.; subjecting the high boiling fraction to a hydrocracking/hydroisomerization step to obtain a partially isomerised product stream; separating the partially isomerised product stream to obtain a first middle distillates fraction, a heavy distillates fraction and a residual fraction, the residual fraction having a T5 wt. % boiling point between 400 and 650° C.; dewaxing the low boiling fraction to obtain a second middle distillates fraction; dewaxing the heavy distillates fraction to obtain a distillate base oil; and dewaxing the residual fraction to obtain a residual base oil.

    Abstract translation: 通过提供费 - 托产物流来制备第一中间馏分,第二中间馏分,馏出物基油和残余基础油的方法; 分离费 - 托产物流以获得沸点低于300-450℃的沸点,沸点高于300-450℃的高沸点馏分。 将高沸点馏分进行加氢裂化/加氢异构化步骤以获得部分异构化的产物流; 分离部分异构化的产物流以获得第一中间馏分馏分,重馏分馏分和残余馏分,残余馏分具有T5wt。 沸点在400和650℃之间。 将低沸点馏分脱蜡以获得第二中间馏分; 将重馏分馏分脱蜡,得到馏出物基油; 并将残余馏分脱蜡以获得残留的基础油。

    Process for preparing a base oil having a reduced cloud point

    公开(公告)号:US11142705B2

    公开(公告)日:2021-10-12

    申请号:US16064046

    申请日:2016-12-23

    Abstract: The present invention relates to a process for preparing a residual base oil from a hydrocarbon feed which is derived from a Fischer-Tropsch process, the process comprises the steps of: (a) providing a hydrocarbon feed which is derived from a Fischer-Tropsch process; (b) subjecting the hydrocarbon feed of step (a) to a hydrocracking/hydroisomerisation step to obtain an at least partially isomerised product; (c) separating at least part of the at least partially isomerised product as obtained in step (b) into one or more lower boiling fractions and a hydrowax residue fraction; (d) catalytic dewaxing of the hydrowax residue fraction of step (c) to obtain a highly isomerised product; (e) separating the highly isomerised product of step (d) into one or more light fractions and a isomerised residual fraction; (f) mixing of the isomerised residual fraction of step (e) with a diluent to obtain a diluted isomerised residual fraction; (g) cooling the diluted isomerised residual fraction of step (f) to a temperature between 0° C. and −60° C.; (i) subjecting the mixture of step (g) to a centrifuging step at a temperature between 0° C. and −60° C. to isolate the wax from the diluted isomerised residual fraction; (j) separating the diluent from the diluted isomerised residual fraction to obtain a residual base oil.

    Process for the conversion of a paraffinic feedstock

    公开(公告)号:US09896632B2

    公开(公告)日:2018-02-20

    申请号:US15032837

    申请日:2014-10-30

    Abstract: The disclosure relates to the conversion of a paraffinic feedstock that comprises at least 50 wt % of compounds boiling above 370° c. and which has a paraffin content of at least 60 wt %, an aromatics content of below 1 wt %, a naphthenic content below 2 wt %, a nitrogen content of below 0.1 wt % The process includes: a) subjecting the paraffinic feedstock to a hydroprocessing step to obtain an at least partially isomerized feedstock; and b) separating the at least partially isomerized feedstock into one or more middle distillate fractions and a first residual fraction. Step (a) is carried out by contacting the paraffinic feedstock with a first catalyst having hydrocracking and hydroisomerizing activity and then with a second catalyst having hydrocracking and hydroisomerizing activity. The second catalyst is more active in hydroisomerization and less active in hydrocracking than the first catalyst.

    PROCESS TO PREPARE MIDDLE DISTILLATES AND BASE OILS
    6.
    发明申请
    PROCESS TO PREPARE MIDDLE DISTILLATES AND BASE OILS 审中-公开
    制备中间馏分和基础油的方法

    公开(公告)号:US20150203769A1

    公开(公告)日:2015-07-23

    申请号:US14408579

    申请日:2013-06-28

    Abstract: A process to prepare a first middle distillates fraction, a second middle distillates fraction and one or more base oils, the process comprising the steps of providing a Fischer-Tropsch product stream; separating the Fischer-Tropsch product stream to obtain at least a low boiling fraction, boiling below a temperature in the range of from 300 to 450° C., and a high boiling fraction, boiling above a temperature in the range of from 300 to 450° C.; subjecting the high boiling fraction to a hydrocracking/hydroisomerization step to obtain an at least partially isomerised product stream; separating the partially isomerised product stream to obtain a first middle distillates fraction and a residual fraction, wherein the residual fraction has a T10 wt. % boiling point of between 200 and 450° C.; dewaxing the low boiling fraction to obtain a second middle distillates fraction; and dewaxing the residual fraction to obtain one or more base oils.

    Abstract translation: 一种制备第一中间馏分馏分,第二中间馏分和一种或多种基础油的方法,该方法包括提供费 - 托产物流的步骤; 分离费 - 托产物流以获得至少一个沸点低于300-450℃的沸点,沸点高于300-450℃的高沸点馏分 C。; 将高沸点馏分进行加氢裂化/加氢异构化步骤以获得至少部分异构化的产物流; 分离部分异构化的产物流以获得第一中间馏分馏分和残余馏分,其中残余馏分具有T10wt。 沸点百分比在200-450℃之间。 将低沸点馏分脱蜡以获得第二中间馏分; 并将残余馏分脱蜡以获得一种或多种基础油。

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